Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N542US - Boeing 757 251/W - Delta Air Lines DAL315/DL315, Hartsfield - Jackson Atlanta (ATL) to Jackson Hole (JAC) - 4.8 mi away @ 39100 ft, heading WNW at 455 mph. Spotted 2x before! [06:46:28 PM CDT] #A6E12D #N542US #B752 #DELTA #DAL315 #DL315 #ADSB #ADSBbot

Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N542US - Boeing 757 251/W - Delta Air Lines DAL444/DL444, Hartsfield - Jackson Atlanta (ATL) to Seattle-Tacoma (SEA) - 4.3 mi away @ 34425 ft, heading WNW at 454 mph. Spotted once before! [08:52:43 AM CST] #A6E12D #N542US #B752 #DELTA #DAL444 #DL444 #ADSB #ADSBbot